Greater_Yellowstone_ecosystem_map.jpg
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Greater YellowStone Ecosystem Video
Gray_wolf.JPG
This is an example of a biotic factor in yellow stone http://www.google.ca/imgres?imgurl=http://www.nationalparkstraveler.com/files/storyphotos/Gray_wolf.JPG%3F0&imgrefurl=http://www.nationalparkstraveler.com/2008/07/judge-restores-esa-protection-wolves-greater-yellowstone-ecosystem-0&usg=__UuDenNBBLXhPnXn8yO-NxMST0hc=&h=500&w=327&sz=140&hl=en&start=47&zoom=1&tbnid=xhYilJpnlETroM:&tbnh=129&tbnw=82&ei=7IPWTc-sOqPr0QH94PjaBw&prev=/search%3Fq%3Dgreater%2Byellowstone%2Becosystem%2Banimals%26um%3D1%26hl%3Den%26safe%3Dactive%26client%3Dfirefox-a%26sa%3DX%26rls%3Dorg.mozilla:en-GB:official%26biw%3D1024%26bih%3D578%26tbm%3Disch0%2C1368&um=1&itbs=1&iact=rc&dur=293&sqi=2&page=4&ndsp=17&ved=1t:429,r:10,s:47&tx=27&ty=67&biw=1024&bih=578
InvadedForest.jpg
This is an example of an abiotic factor http://www.google.ca/imgres?imgurl=http://www.actionbioscience.org/figures/InvadedForest.jpg&imgrefurl=http://www.actionbioscience.org/environment/loganmacfarlane.html&usg=__1SgeHCxlKcSEZ1WHxwMBa1ZYRzQ=&h=163&w=179&sz=26&hl=en&start=32&zoom=1&tbnid=fNvJhWZO1I0GnM:&tbnh=119&tbnw=131&ei=FoTWTYGeKufj0QHP26nRBw&prev=/search%3Fq%3Dgreater%2Byellowstone%2Becosyestemtrees%26um%3D1%26hl%3Den%26safe%3Dactive%26client%3Dfirefox-a%26rls%3Dorg.mozilla:en-GB:official%26biw%3D1024%26bih%3D578%26tbm%3Disch0%2C1026&um=1&itbs=1&iact=rc&dur=97&sqi=2&page=3&ndsp=16&ved=1t:429,r:11,s:32&tx=67&ty=46&biw=1024&bih=578

2. The Greater yellowstone area is in the northern Temperate zone of the earth which means there is no extreme of temperatures. They species work with this habitat by the wolves kill the elk which keeps the grazing area fresh and long also trees start growing and that makes habitats for lots of species. In turn this balances the habitats and niches.



food-web2.jpg
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3. These are just 2 of the many food chains in yellowstone.
42_q.gif
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4.In Yellowstone beofre 1995 there were either no wolves or 1 or 2 wolves but in 1995 the park poeple reintroduced the the gray wolves and it has been a wonderful thing for the park and eveything around the park has benefited from the wolves. The elk have changd their behavior because the gray wolf is the main predator due to this event the grazing area where elk graze was almost nothing but due to the wolves the grass is starting to regrow. Also due to the Elk getting hunted the willows and aspen. In adition the gray wolf's reintroduction also affected the park's population of grizzly bears.The bears coming out of hibernation choose to scavenge off wolf kills to gain needed energy and fatten up after fasting for months. Many of other species have been seen scavenging from the wolf kills.